Just by purchasing this ring you are owning 3 rings at the same time. Sure to be a favorite. This is a gorgeous three piece promise ring set. It features 1 round shape dark blue and 2 pear shape red natural aventurines in a bezel setting. The rings are crafted from solid tested and guaranteed 925 sterling silver. It marked “925”. Hallmark stamp 925 indicates it’s composed of 92.5% pure silver. The width of the rings together is approximately 27mm and sits approximately 6mm off of the finger. The approximate weight of the rings is 7 grams. Giving this unique one of a kind designer ring set as a gift is one way you can express love, recognition, and loyalty to your loved one.